MESON Chess Problem Database

Problem Display
PID: 239017 (8/2p2q2/4p1n1/RQ2P1N1/p1KN1p2/2p1kp1R/2P5/4B1n1 w - - 0 1)

Petite, Efren

Problemas, 2014

8/2p2q2/4p1n1/RQ2P1N1/p1KN1p2/2p1kp1R/2P5/4B1n1

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Rxf3#
    • 1...Sxe5+
      • 2.Qxe5#
  • Tries
    • 1.Kxc3?
      • threat
        • 2.Qd3#
      • 1...Se2+
        • 2.Qxe2#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Qf5!
    • 1.Qc6?
      • threat
        • 2.Qe4#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Qf5!
    • 1.Qb2?
      • threat
        • 2.Qc1#
        • 2.Qxc3#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Qf5
        • 2.Qc1#
      • 1...Se2
        • 2.Rxf3#
      • 1...cxb2!
    • 1.Qb4?
      • threat
        • 2.Qxc3#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Se2
        • 2.Rxf3#
      • 1...Qf5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qc1#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Se2
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::R1(C),XP(d)
    • S(h);CHECK,OGATE,XP(H)::QAR2(G),XS(h)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(b)
      • Threat
        • QAR1(G)
      • Vars
        • S(a);CHECK,N_GUARD::QAR1(G),XS(a)
        • S(h);OGATE,XP(H)::QAR2(G),XS(h)
      • Refutation
        • Q(j);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • S(h);CHECK,OGATE,XP(H)::R(F),XS(h)
      • Refutation
        • Q(j);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(h);CHECK,OGATE,XP(H)::R(F),XS(h)
        • Q(j);::QAB(G)
        • S(a);N_GUARD::R1(C),XP(d)
      • Refutation
        • P(b);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR2(G),XP(b)
      • Vars
        • S(h);CHECK,OGATE,XP(H)::R(F),XS(h)
        • S(a);N_GUARD::R1(C),XP(d)
      • Refutation
        • Q(j);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • S(h);CHECK,OGATE,XP(H)::R(F),XS(h)
      • S(a);N_GUARD::R1(C),XP(d)
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